Telemark Kollektivtrafikk is a Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 bus company that operates the city buses in Grenland

Grenland

Grenland is a traditional district in the county of Telemark, in the south of Norway. It is composed of the municipalities Skien, Porsgrunn, Bamble, Nome, and Siljan. Sometimes the municipalities Kragerø, and Drangedal are considered being part of the area...

, Telemark

Telemark

is a county in Norway, bordering Vestfold, Buskerud, Hordaland, Rogaland and Aust-Agder. The county administration is in Skien. Until 1919 the county was known as Bratsberg amt.-Location:...

. The company holds a public service obligation

Public Service Obligation

In transport, public service obligation or PSO is an arrangement in which a governing body or other authority offers an auction for subsidies, permit the winning company a monopoly to operate a specified service of public transport for a specified period of time for the given subsidy...

 (PSO) contract with the County of Telemark

Telemark

is a county in Norway, bordering Vestfold, Buskerud, Hordaland, Rogaland and Aust-Agder. The county administration is in Skien. Until 1919 the county was known as Bratsberg amt.-Location:...

 for city buses in Porsgrunn

Porsgrunn

is a town and municipality in Telemark county, Norway. It is part of the traditional region of Grenland. The administrative centre of the municipality is the town of Porsgrunn....

 and Skien

Skien

' is a city and municipality in Telemark county, Norway. It is part of the traditional region of Grenland. The administrative centre of the municipality is the city of Skien. Skien is also the administrative centre of Telemark county....

.

The company holds the PSO contract for five years from June 27, 2005 and is owned by Nettbuss

Nettbuss

Nettbuss AS is the largest bus company in Norway owned by the Norwegian State Railways . It was until 2000 known as NSB Biltrafikk. The company has 14 operating subsidiaries throughout Norway and in Denmark and Sweden....

 (73%) and Telemark Bilruter

Telemark Bilruter

Telemark Bilruter is a Norwegian bus company based in Telemark with headquarters in Seljord. The company operates regional and express buses in addition to trucks. The company has monopoly in most of Telemark, but not the highly populated Grenland area...

 (27%). The company operates three Metrobuss (Metro bus) lines (M1 - M3) and four Pendelbuss (Commuter bus) routes (P4 - P7). The M routes normally have a headway

Headway

Headway is a measurement of the distance/time between vehicles in a transit system. The precise definition varies depending on the application, but it is most commonly measured as the distance from the tip of one vehicle to the tip of the next one behind it, expressed as the time it will take for...

of 15 minutes while the P routes have a nominal headway of one hour.